I used to wear my Bali panties for a long time when I was single. I didn't particularly care if they got a little faded and it took a while before they even began to fall apart.
I could not tell you how many washes.
All I know is that I rotate them out. I always wear the same kind, just in many different colors. They are not inexpensive panties!
My GF likes to rub my butt when I wear them because the panties feel silky.
She kind of, well, actually does, teases me if they start to get any "pills" on the butt, so out in the trash they go.
Much, much, quicker than when I was single.
__________________
~Anya~
Democracy Dies in Darkness
~Washington Post
"...I'm deeply concerned by recently adopted policies which punish children for their parents’ actions ... The thought that any State would seek to deter parents by inflicting such abuse on children is unconscionable."
UN Human Rights commissioner